Method, system, and device for improving vod service reliability

Abstract

A method for improving video on demand (VOD) service reliability includes: selecting a first VOD server to provide VOD services for a user terminal; and reselecting a second VOD server according to the current running status of each VOD server and a policy to continue providing VOD services for the user terminal after receiving a VOD request re-initiated by the user terminal. The present invention avoids blind switchover of VOD services, greatly improves the switchover success ratio, and ensures the quality of the VOD services provided for users.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation of International Application No. PCT / CN2007 / 071286, filed on Dec. 20, 2007, titled “Method, System, and Device for Improving VOD Service Reliability”, which claims the priority of CN application No. 200610157987.3, filed on Dec. 20, 2006, titled “Method, System, and Device for Improving VOD Service Reliability”, the entire contents of all of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to Internet Protocol Television (IPTV) technologies, and in particular, to a method, system, and device for improving the video on demand (VOD) service reliability.BACKGROUND OF THE INVENTION[0003]With the fast development of the broadband Internet and the rapid growth of the VOD, TV program, video phone, online game, and multimedia messaging service (MMS) provided for family users, the IPTV service gradually becomes one of the hotspots in the broadband multimedia fiel...

AI Technical Summary

Benefits of technology

[0025]As shown in the preceding technical solution, before switching the VOD server, the global load balancer provided in embodiments of the present invention makes a judgment according to the current running status of each VOD server and a policy and then reselects a VOD server to continue providing VOD services for user terminals. The technical solution avoids blind switchover, greatly improves the switchover success ratio, and ensures the quality of the VOD services provided for users.

Problems solved by technology

Due to instable network transmission, however, when VOD server 1 provides video streaming services for the user terminal, the link between VOD server 1 and the user terminal may be broken due to the jitter or congestion of the transmission link.

Thus, VOD server 1 cannot continue to serve the user terminal.

In this case, the VOD service must be restarted manually, which is troublesome.

According to the technical solution, however, the inventor discovers that VOD server switchover is of certain blindness and that the reliability is not high because the current status of standby VOD server 2 is not considered during VOD server switchover.

Images